31results about "Liquid seeding techniques" patented technology

The present disclosure provides a hydroseeding substrate comprising primary solids from an anaerobic digester, a cover composition comprising bentonite clay and a water-dispersible polymer or starch, and a surface-treated hydroxypropyl methyl cellulose (HPMC). The primary solids may comprise fibrous solids from dairy, poultry, hog, or cattle waste. The water-dispersible polymer may include one or more cellulose derivatives. The surface-treated HPMC may be present in an amount of 0.1 to 20 weight percent of the substrate. The hydroseeding substrate may further include a fertilizer and a soil adjuvant. The disclosure also provides a method of producing a dissolvable fertilizer package and the resulting package, comprising a dried mixture of primary solids from an anaerobic digester and nutrients contained within a tube formed from a polyvinyl alcohol film that is 85-90% hydrolyzed.

The invention relates to the technical field of spray-seeding devices, and discloses a grass seed spray-seeding device for grassland restoration, which comprises a translation mechanism, a mixing mechanism, an adjusting mechanism and a spray-seeding mechanism, the mixing mechanism is arranged on the translation mechanism; the adjusting mechanism comprises a lifting assembly, a depression angle adjusting assembly and a deflection adjusting assembly. The input end of the variable frequency pump is communicated with the mixing assembly, the output end of the variable frequency pump is communicated with one end of the grass seed injection assembly, the other end of the grass seed injection assembly is communicated with one ends of the two supporting hoses, the other ends of the supporting hoses are communicated with the spray-seeding pipe, and the spray-seeding pipe is in transmission connection with the deflection adjusting assembly. According to the method, the spray-seeding net is formed through spray-seeding, the organic matter content of original soil of the grassland is increased, the soil structure is improved, the water and fertilizer retention capacity is enhanced, the vegetation coverage and biomass are restored, the ecological system function is enhanced, sufficient growth space is reserved for original vegetation of the grassland, and auxiliary spray-seeding is carried out when the grassland is restored.

The invention relates to the field of spray-seeding greening, in particular to a spray-seeding greening device for urban wall slope grass planting and slope protection and an operation method thereof.The device comprises a rectangular frame, strip-shaped through holes are formed in the two sides of the rectangular frame, lead screws are rotationally connected into the two through holes, driving blocks are in threaded connection with the two lead screws, and rod bodies are rotationally connected to the driving blocks; a barrel is fixedly connected between the two rod bodies, and a plurality of sliding holes are formed in the surface of the barrel; a plurality of liquid inlet holes are formed in the outer ring of the rod body, a hollow ring body is arranged on the outer ring of the rod body, the inner ring of the ring body is rotationally connected to the rod body in a sealed mode, the interior of the ring body communicates with the liquid inlet holes, and the ring body communicates with an external pump body through a hose; the spray-seeding greening device is small, exquisite and flexible and can adapt to greening spray-seeding of some urban wall slopes with limited space, the rectangular frame is flexibly transferred to some areas with narrow space through the driving wheels, meanwhile, when the rectangular frame is transferred to the urban wall slope, rotation of the rectangular frame is controlled through steering of the driving wheels, and the placement state of the rectangular frame is flexibly adjusted.

The invention relates to a spray-on planting device (10) for greening areas, comprising a tank (14) with an interior (32) for receiving a liquid (30) and an outlet opening (28) for dispensing the liquid (30), a pump (20) for conveying the liquid (30) from the interior (32) of the tank (14), a mixing pipe (44), and a comminution device (68) for comminuting fiber material provided in bales (90) and for discharging the comminuted fiber material (96) into the interior (32) of the tank (14). The spray-on planting device (10) preferably further comprises a dispensing unit (34) for dispensing the liquid (30) from the interior (32) of the tank (14) onto an area to be greened. The invention further relates to a method for operating a spray-on planting device (10) and to the use of a comminution device (68) in a spray-on planting device (10) having a tank (14) with an interior space (32) for receiving a liquid (30) and an outlet opening (28) for dispensing the liquid (30) and at least one mixing nozzle (56) arranged in the interior space (32) of the tank (14) for injecting a liquid (30) for mixing the liquid (30).

A spray greening device (10) for greening areas is disclosed, which comprises a tank (14) with an interior (32) for receiving a liquid (30) and an outlet opening (28) for dispensing the liquid (30), a pump (20) for conveying the liquid (30) from the interior (32) of the tank (14), a mixing pipe (44) and a dispensing unit (34) for dispensing the liquid (30) from the interior (32) of the tank (14) onto an area to be greened.Furthermore, a method for operating a spray planting device (10) and a use of a comminution device (68) and / or a mixing pipe (44) in a spray planting device (10) having a tank (14) with an interior space (32) for receiving a liquid (30) and an outlet opening (28) for dispensing the liquid (30) and at least one mixing nozzle (56) arranged in the interior space (32) of the tank (14) for injecting a liquid (30) for mixing the liquid (30) are disclosed.

The seagrass seed-planting system includes: a storage and agitation subassembly; a dispenser subassembly; and a pump subsystem. The storage and agitation subassembly: is configured to store a quantity of seagrass seeds in an aqueous environment; includes a set of fluid inlet ports configured to direct water into the aqueous environment to agitate the quantity of seagrass seeds; and defines an outlet aperture. The dispenser subassembly: is fluidically coupled to the outlet aperture; and is configured to dispense the seagrass seed into a sediment layer. The pump subsystem directs a flow of water from the storage and agitation subassembly through the set of fluid inlet ports, through the outlet aperture, and toward the dispenser subassembly.

The invention relates to an ecological restoration composite structure for an acid rock cliff side slope. The ecological restoration composite structure is composed of a side slope stability strengthening system, a soil dressing layer anti-scouring stabilizing system, an acid-resistant plant community restoration system, a high-position water supply maintenance system and a water intercepting and draining ditch. The slope stability strengthening system forms a composite anchoring structure through full-length viscous anchor rods and a flexible protective net, and the soil dressing layer anti-scouring stabilizing system forms a multi-layer composite structure through a sprayed aggregate soil layer, ecological rods, a galvanized chain link net, an ecological base material layer, a reinforced microphone pad and anchoring parts. According to the acid-resistant plant community restoration system, acid-resistant indigenous plants such as masson pine with combined deep roots and shallow roots are sown in the soil dressing layer; the high-position water supply maintenance system provides maintenance water for the slope through a high-position water storage pool, a plastic hose, a PE water conveying pipe and a spraying device. According to the method, the problems of instability, scouring, difficulty in vegetation survival and the like of the acid rock cliff slope are systematically solved, and the long-term goals of slope stability and ecological restoration are achieved.

An automatic vertical farming system may include a frame defining at least one growth area and configured to support a plurality of vertical plant growth structures within the at least one growth area. The system may include at least one robot disposed on a top side of the frame and movably supported by the frame. At least one robot may include at least one tool configured to manipulate the plurality of vertical plant growth structures. The system may include at least one infiltration chamber configured to contain at least one of the plurality of vertical plant growth structures and expose the vertical plant growth structure to an inoculant. The system may include a control system including at least one processor configured to automatically control operation of the at least one robot and the at least one infiltration chamber.

The invention discloses a hydraulic spray-seeding machine for quarrying mine carbon sink repair, which comprises a stirring bin, a first liquid spray pipe and a second liquid spray pipe, the first liquid spray pipe and the second liquid spray pipe are arranged side by side at the top of the stirring bin, a generator is arranged at the lower part of the front side of the stirring bin, an extension pipe capable of sliding up and down is arranged at the middle-upper part of the first liquid spray pipe, and the top of the first liquid spray pipe is higher than the second liquid spray pipe. In order to solve the problem that vegetation is damaged due to surface exposure after mining, a traditional hydraulic spray-seeding machine is optimized and improved, so that the traditional hydraulic spray-seeding machine can stir in a classified mode, the seed germination rate is increased, a high liquid spraying pipe and a low liquid spraying pipe are adopted during spray-seeding, layered covering is achieved, the spray-seeding efficiency and the use effect of a plant growing base material are further improved, and the application range is wide. The method is of great significance to ecological restoration and carbon sink of the mine slope.

The invention relates to the technical field of side slope microbial remediation and reinforcement, in particular to a microbial capillary crystalline type side slope vegetation reinforcement device which comprises a moving assembly and a material supplementing assembly, a repairing assembly is mounted on the moving assembly, and the repairing assembly comprises a fixed mounting disc fixedly mounted on the moving assembly; a conversion assembly is installed on the fixed installation disc, and a cleaning assembly, a grouting coating assembly and a whole piece pressurizing assembly are installed on the conversion assembly and distributed on the conversion assembly in a triangular array mode. Through cooperative work of multiple assemblies, the slope can be efficiently repaired and reinforced, cracks, pores and gaps are filled with sedimentary carbonate minerals in the microbial bacterial liquid coating, the strength and stability of the slope surface are effectively enhanced, a water seepage surface can be blocked, and water and soil loss is avoided.

A nozzle assembly (104) is attached to an agricultural implement (103) comprising a liquid jet soil processing system (102). The nozzle assembly (104) includes a frame (202) configured to detachably mount to the agricultural implement (103) and a cutting head (208) connected to the frame (202). The nozzle assembly (104) also includes a secondary nozzle (216) connected to the frame (202) and disposed distal to the cutting head (208) relative to a direction of travel of the nozzle assembly (104). The nozzle assembly (104) further includes a ground translation device (206) connected to the frame (202). A tuning unit of the nozzle assembly (104) dynamically connects the cutting head (208), the secondary nozzle (216) and the ground translation device (206) to the frame (202). The tuning unit is configured to maintain the cutting head (208) substantially perpendicular to the field surface along a vertical axis as the ground translation device (206) travels across the field.

The invention belongs to the technical field of water conservancy, and discloses a water conservancy slope protection construction device which comprises a driving vehicle, the driving vehicle moves on a water conservancy dam, grass seed sowing equipment and winding equipment are installed on the driving vehicle, and the water conservancy slope protection construction device further comprises a supporting assembly installed on the side of the driving vehicle. A first butt-joint frame is connected with the side portion of a driving vehicle, a first pipe frame rotates at the hinged position of the first pipe frame and a first sector plate, a spraying assembly is kept parallel to a slope of a slope protection slope, a second butt-joint block rotates at the hinged position of a second sector plate, and a second butt-joint rod is rotated to fix the second butt-joint block and the second sector plate; the overall operation stability of the equipment can be improved through rollers, namely, the grass seed sowing equipment is connected with a spraying assembly, a driving vehicle drives a first butt joint rod to move, slope protection is sown through the spraying assembly, the grass seed spraying uniformity is improved, it is guaranteed that the slope protection uniformly covers a lawn, the slope protection is more attractive, and the overall protection capacity of the slope protection is improved.

The invention relates to the technical field of ecological restoration, and particularly provides an antimony ore mine area microorganism and constructed wetland collaborative ecological restoration system. The antimony ore mine area microorganism and constructed wetland collaborative ecological restoration system comprises a spray-seeding mounting assembly, a spray-seeding assembly, a rivet assembly and a net laying assembly. Interface slurry can be uniformly sprayed on the ground of a mining area to form a spray-seeding layer, symbiosis of microorganisms and target plants is promoted, the endurance capacity of the plants is enhanced, the recovery speed and quality of an ecological system of the mining area are improved, anchor nails are sprayed and fixed through the anchor nail assemblies, the anchoring force is enhanced, the stability and durability of the spray-seeding layer are improved, and the service life of the spray-seeding layer is prolonged. Meanwhile, a covering net is laid through a net laying assembly to disperse stress and prevent the spray-seeding layer from cracking and overall sliding, soil in the mining area is ploughed and pressed on the two sides of the covering net, it is ensured that the covering net is fixed and compacted, the spray-seeding layer is prevented from being separated from the ground of the mining area, and the overall structural stability of the ecological restoration layer is enhanced.

The invention discloses a biological soil crust spray-seeding device, and belongs to the technical field of soil crust. The device integrates crust collecting, crushing, mixing and spray-seeding functions through the moving frame, and solves the problems of high cost and low equipment utilization rate caused by multi-equipment staged operation in the prior art. The device body is composed of a moving frame, a shovel plate, a smashing box and a mixing barrel, the rotatable shovel plate is arranged at the top of the moving frame to collect earth surface crust, and crust collection is achieved through cooperation of a guide plate and a groove. The crushing box is connected with the mixing cylinder through a communicating pipe, double crushing rollers are arranged in the crushing box, and a stirring shaft is arranged in the mixing cylinder. The collecting structure adopts a combination of a conveying belt and a placing box to convey crust, and the mixing structure realizes linkage of a crushing roller and a stirring shaft through transmission of a synchronizing wheel. The spray pipe assembly generates negative pressure through a compression air pump to adsorb mixed crust. The device integrates a multi-process function through the single moving frame, the equipment cost is remarkably reduced, the operation efficiency is improved, and the device is suitable for crust spray-seeding operation in the field of desertification control.

The invention discloses a self-weighing mixing mechanism of a spray seeding machine and a weighing mixing method, and relates to the technical field of spray seeding machines, the self-weighing mixing mechanism comprises a connecting box, a rear mechanical arm, a front mechanical arm and a scraper blade, two symmetrical side surfaces of the outer wall of the connecting box are provided with a first flange plate and a second flange plate, a rear mechanical arm is arranged between the first flange plate and the second flange plate, the rear mechanical arm is connected with a front mechanical arm through a second connecting hole, the front mechanical arm is connected with a rotating block through a fourth connecting hole formed in the side face of the outer wall, and a scraper is arranged on the front side of the outer wall of the rotating block and is in a 7 shape. An arc-shaped scraping shovel is arranged on the side surface of the inner wall of the scraping plate. By installing the connecting box, the rear mechanical arm, the front mechanical arm rotating block, the scraping plate and the arc-shaped scraping shovel, material stirring and synchronous scraping and recycling of residues on the tank wall are achieved, the material utilization rate is increased, stirring uniformity is guaranteed, material waste is reduced, and the production cost is reduced. The problems of material waste, insufficient stirring and difficulty in later cleaning caused by residue accumulation on the tank wall in the prior art are solved.

A subaquatic seed planting system may include a seed repository, an injecting needle, an actuator, and a pump. The actuator moves the injecting needle from a retracted position to an extended position, wherein in the extended position a dispensing end of the injecting needle is disposed below a surface of the subaquatic substrate, to inject the seed slurry mix, obtained from the seed repository, into a subaquatic substrate. The pump conveys the seed slurry from the seed repository to the receiving end of the injecting needle when the actuator is in the extended position and the dispensing end of the injecting needle is disposed below the surface of the subaquatic substrate. The pump is also configured to pump the seed slurry mix into the subaquatic substrate.

The application relates to the field of spray seeding greening, in particular to a spray seeding greening device for wall slope grass planting and slope protection and an operation method thereof. The device comprises a rectangular frame, strip-shaped through holes are formed in the two sides of the rectangular frame, a screw rod is rotationally connected in each of the two through holes, a driving block is threadedly connected on each of the two screw rods, a rod body is rotationally connected on the driving block, a cylinder is fixedly connected between the two rod bodies, and a plurality of sliding holes are formed in the surface of the cylinder. A plurality of liquid inlet holes are formed in the outer ring of the rod body, a hollow ring body is arranged on the outer ring of the rod body, the inner ring of the ring body is sealingly and rotationally connected on the rod body, the ring body is in communication with the liquid inlet holes, and the ring body is connected with an external pump body through a hose. The spray seeding greening device is small and flexible, can be adapted to the spray seeding of some space-limited wall slope greening, the rectangular frame can be flexibly transferred to some narrow space through a driving wheel, and the rotation of the rectangular frame is controlled through the driving wheel when the rectangular frame is transferred to the wall slope position, so that the placing state of the rectangular frame can be flexibly adjusted.

A nozzle assembly is attached to an agricultural implement comprising a liquid jet soil processing system. The nozzle assembly includes a frame configured to detachably mount to the agricultural implement and a cutting head connected to the frame. The nozzle assembly also includes a secondary nozzle connected to the frame and disposed distal to the cutting head relative to a direction of travel of the nozzle assembly. The nozzle assembly further includes a ground translation device connected to the frame. A tuning unit of the nozzle assembly dynamically connects the cutting head, the secondary nozzle and the ground translation device to the frame. The tuning unit is configured to maintain the cutting head substantially perpendicular to the field surface along a vertical axis as the ground translation device travels across the field.

This invention relates to the field of hydroseeding technology, and discloses a grass seed hydroseeding device for grassland restoration, comprising a translation mechanism, a mixing mechanism, an adjustment mechanism, and a hydroseeding mechanism; the mixing mechanism is mounted on the translation mechanism; the adjustment mechanism includes a lifting component, a tilting adjustment component, and a deflection adjustment component; the input end of a variable frequency pump is connected to the mixing component, the output end of the variable frequency pump is connected to one end of a grass seed injection component, the other end of the grass seed injection component is connected to one end of two supporting hoses, the other end of the supporting hoses is connected to a hydroseeding pipe, and the hydroseeding pipe is drively connected to the deflection adjustment component. This invention forms a hydroseeding net through hydroseeding, increasing the organic matter content of the original grassland soil, improving soil structure, enhancing water and fertilizer retention capacity, restoring vegetation cover and biomass, enhancing ecosystem function, and reserving sufficient growth space for the original grassland vegetation, thus realizing auxiliary hydroseeding during grassland restoration.

Super absorbent polymers (SAP) generally exhibit adhesive and cohesive properties in the presence of moisture. To prevent unwanted absorption of moisture from the atmosphere, and in order to increase shelf life and handling life of SAPs; dried spent coffee ground powders may be mixed with the SAPs to prevent unwanted hydration of the SAP mixture. The natural oils in the grounds are responsible for providing a hydrophobic coating on the SAP particles.

The invention discloses a liquid seeding machine which comprises a rack, a front wheel shaft system and a rear wheel shaft system are arranged at the bottom of the rack, a control assembly, a fertilization assembly, a seeding assembly and an injection assembly are arranged on the rack, and a pressurization assembly for pressurizing the interior is arranged on the fertilization assembly. The control assembly synchronously controls opening and closing of discharge ports of the fertilization assembly and the seeding assembly, the control assembly further controls starting and stopping of the injection assembly, when the discharge ports of the fertilization assembly and the seeding assembly are opened, the injection assembly is started, and when the discharge ports of the fertilization assembly and the seeding assembly are closed, the injection assembly is stopped, and when the discharge ports of the fertilization assembly and the seeding assembly are closed, the injection assembly is started. Discharging ports of the fertilizing assembly and the sowing assembly are connected with a feeding port of the injection applying assembly through the conveying assembly. The liquid seeding machine provided by the invention does not need rotary tillage to cultivate soil, can effectively mix seeds with fertilizer and pesticide through the injection and application assembly and then sow the mixture into the ground, reduces disturbance to soil, avoids water and soil loss, and improves the seeding quality, efficiency and emergence rate.

An electric-powered bulk material dispersing system and method of use. The electric power is provided by a battery system with one or more electric motors to replace traditional internal combustion engines. The electric motor or motors are used to provide pressure to one or more pumps that may be used in conjunction with various tubes, hoses or related conduit and spray nozzles in order to disperse a bulk material such as seed, mulch, compost, chipped wood, grain, hay, fertilizer, herbicide, pesticide, plastic pellets, salt, sand or the like that has been combined or suspended within a fluent material. In one form, the bulk material dispersing system may be used as a bulk hydroseeder.

The invention discloses a grass seed planting fluid jet device for grassland restoration, relates to the technical field of planting jet devices, and solves the technical problems that a grass seed mixture is easy to remain at the bottom of a mixing barrel, and a grass seed jet gun needs to be manually supported in the jet process. Comprising a movable chassis, a vertical frame is arranged in the movable chassis, and a mixing barrel for mixing grass seed liquid is arranged at the top of the vertical frame; the spray gun is arranged in front of the mixing barrel; the material pushing regulation and control structure is mounted on the front surface of the vertical frame and is used for supporting the spraying gun; the material pushing regulation and control structure comprises two material pushing components for pushing grass seed liquid in the vertical frame to the middle; when grass seed liquid is discharged, the grass seed liquid can be pushed towards the discharging opening in an auxiliary mode, grass seeds are prevented from being retained at the bottom of the mixing barrel, the grass seed liquid spraying planting grass seed discharging sufficiency is improved, grass seed residual waste is reduced, meanwhile, the grass seed liquid spraying angle of the spraying gun is adjusted and controlled, the grassland planting restoration range is expanded, and the grassland planting restoration efficiency is improved. The grassland repairing effect is improved.

The present disclosure provides a hydroseeding substrate comprising primary solids from an anaerobic digester, a cover composition comprising bentonite clay and a water-dispersible polymer or starch, and a surface-treated hydroxypropyl methyl cellulose (HPMC). The primary solids may comprise fibrous solids from dairy, poultry, hog, or cattle waste. The water-dispersible polymer may include one or more cellulose derivatives. The surface-treated HPMC may be present in an amount of 0.1 to 20 weight percent of the substrate. The hydroseeding substrate may further include a fertilizer and a soil adjuvant. The disclosure also provides a method of producing a dissolvable fertilizer package and the resulting package, comprising a dried mixture of primary solids from an anaerobic digester and nutrients contained within a tube formed from a polyvinyl alcohol film that is 85-90% hydrolyzed.

The invention provides an ecologically fragile area vegetation intelligent restoration device and method.The method comprises the following steps that adhesive layer slurry, matrix layer slurry and seed layer slurry are sequentially sprayed and sown in an ecologically fragile area, the mass ratio of the adhesive layer slurry to the matrix layer slurry to the seed layer slurry is (3-5): (30-40): 10, and the adhesive layer slurry comprises a sodium silicate solution; the substrate layer slurry comprises water, soil powder, a bagasse fermentation product and a compound fertilizer, and the bagasse fermentation product is prepared by fermenting acetobacter xylinum; the seed layer slurry comprises seeds and the substrate layer slurry. According to the method, a sodium silicate solution is sprayed and sown on the ground of the ecologically fragile area, then matrix layer slurry is sprayed and sown to form a matrix layer, and acetic acid in the matrix layer slurry reacts with the sodium silicate solution to generate a sodium silicate gel bonding layer. The sodium silicate gel has strong viscosity and can fix the substrate layer on the ground surface.

The invention relates to the technical field of ecological restoration, and provides a side slope ecological restoration hanging net spray-seeding device which comprises a shell, a material conveying pipe, a material uniformizing swing mechanism and a lifting material shaking mechanism. The conveying pipe is connected with a spray head; the material uniformizing swing mechanism comprises a driving device, a transmission assembly, a swing assembly and an execution connecting piece, the output end of the driving device is connected with the transmission assembly, the transmission assembly is in transmission connection with the swing assembly, the swing assembly is in sliding and circumferential limiting connection with the execution connecting piece, and the bottom of the execution connecting piece is connected with the spray head; the lifting and shaking mechanism comprises a linkage assembly, the linkage assembly is in transmission connection with the transmission assembly, and the output end of the linkage assembly is rotationally connected with the top of the execution connecting piece so as to drive the spray head to vertically ascend, descend and shake in a reciprocating mode under driving of the driving device. Through the joint arrangement of the material uniformizing and swinging mechanism and the lifting and shaking mechanism, synchronous swinging and shaking operation of the spray head is achieved, and the material spraying uniformity and the material spraying efficiency can be further improved.

The present invention relates to the technical field of degraded grassland ecological restoration, and particularly to a grass seed sowing device for degraded grassland ecological restoration, which includes a storage cylinder filled with a mixture of grass seeds and soil, and a mounting frame for mounting the storage cylinder on a tractor; a vertically telescopic telescopic rod is fixedly installed on the mounting frame, and the telescopic end of the telescopic rod is fixedly connected with a sealing cover, and the sealing cover is slidably and sealingly installed inside the storage cylinder; a plurality of discharge pipes are arranged at the bottom of the storage cylinder, and the discharge pipes include inclined pipes and upper pipes and lower pipes respectively fixedly communicated with the upper and lower ends of the inclined pipes, and the upper pipe is rotatably and sealingly connected with the storage cylinder. In the present invention, there is partial overlap between adjacent two line trajectories, and multiple line trajectories can cooperate together to form a net structure for preventing wind and sand, which can not only protect the grass seeds from being blown away by strong winds, but also provide nutrients for the grass seeds, and at the same time has the effect of fixing sand and preventing the grassland from further degrading.

The present disclosure provides a hydroseeding substrate comprising primary solids from an anaerobic digester, a cover composition comprising bentonite clay and a water-dispersible polymer or starch, and a surface-treated hydroxypropyl methyl cellulose (HPMC). The primary solids may comprise fibrous solids from dairy, poultry, hog, or cattle waste. The water-dispersible polymer may include one or more cellulose derivatives. The surface-treated HPMC may be present in an amount of 0.1 to 20 weight percent of the substrate. The hydroseeding substrate may further include a fertilizer and a soil adjuvant. The disclosure also provides a method of producing a dissolvable fertilizer package and the resulting package, comprising a dried mixture of primary solids from an anaerobic digester and nutrients contained within a tube formed from a polyvinyl alcohol film that is 85-90% hydrolyzed.

The invention relates to the technical field of ecological restoration of degraded grassland, in particular to a grass seed sowing device for ecological restoration of degraded grassland, which comprises a storage cylinder filled with a grass seed and soil mixture and a mounting frame for mounting the storage cylinder on a tractor, a vertically telescopic rod is fixedly mounted on the mounting frame, the telescopic end of the telescopic rod is fixedly connected with a sealing cover, and the sealing cover is mounted in the storage cylinder in a sliding and sealing manner; a plurality of discharge pipes are arranged at the bottom of the storage cylinder, each discharge pipe comprises an inclined pipe, an upper pipe and a lower pipe, the upper pipe and the lower pipe are fixedly communicated with the upper end and the lower end of the inclined pipe respectively, and the upper pipes are in rotary sealing connection with the storage cylinder. Every two adjacent line tracks are partially overlapped, the multiple line tracks are matched together to form a net-shaped structure for preventing wind and sand, grass seeds can be protected from being blown up by strong wind, nutrient substances can be provided for the grass seeds, and meanwhile the effects of stabilizing sand and preventing grassland from continuing to degenerate are achieved.